Delta RPI M50A_120 User Manual

25
Installation and Operation Manual for RPI M50A
5 Planning the installation
5.7 AC connection
Always adhere to the specic regulations applicable in
your country or region.
Always adhere to the specic regulations dened by
your grid operator.
For the safety of the user and for the security of your instal-
lation, install required safety and protection devices that
are applicable for your installation environment (example:
automatic circuit breaker and/or overcurrent protection
equipment).
2
Use the proper upstream circuit breaker to protect the
inverter:
Model Upstream Circuit Breaker
RPI M50A 100 A
G N L1 L3L2
N
L1
L2
L3
PE
To solar inverter AC
plug
Fig. 5.12: Where to place upstream circuit breakers
in the system
The inverter is not capable of feeding in DC residual cur-
rents due to its design. It fullls this requirement in accor-
dance with DIN VDE 0100-712.
The possibilities of faults were examined by Delta
without taking the integrated RCMU (residual-current
monitoring unit) into account. When examining
these faults in terms of the current valid installation
standards, no danger in combination with a type A
upstream residual-current device (RCD) can occur.
Therefore faults that would otherwise require the use
of a type B residual-current device due to the inverter
can be excluded.
The integrated all-pole sensitive RCMU is certied
according VDE 0126 1-1/A1:2012-02 §6.6.2 for a trip-
ping current of 300 mA. RCD Type A can be used for
this inverter, according to the following table.
M50A
Minimum tripping current of the
RCD
mA ≥300
NOTE
The value of the tripping current mainly
depends on the quality of the solar
modules, the size of the PV array and
environmental conditions (e.g. humid-
ity). The tripping current of the residual
current device must not be less than
the specied minimum tripping current.
Permitted earthing systems
Earthing
System
TN-S TN-C TN-C-S TT IT
Permitted Yes Yes Yes Yes No
AC grid voltage requirements
3P3W 3P4W
L1-L2 400 V
AC
± 20% L1-N 230 V
AC
± 20%
L1-L3 400 V
AC
± 20% L2-N 230 V
AC
± 20%
L2-L3 400 V
AC
± 20% L3-N 230 V
AC
± 20%

Delta RPI M50A_120 Specifications

General

Brand	Delta
Model	RPI M50A_120
Category	Inverter
Language	English